Home / 18,748.16-25,871.36-10,789.12

Finding the Fourth Proportional to 18,748.16, 25,871.36 and 10,789.12

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Solution

The fourth proportional to 18,748.16, 25,871.36 and 10,789.12 is: 14,888.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,748.16 : 25,871.36 = 10,789.12 : x
  2. Step 2: Convert to fraction form
    18,748.16/25,871.36 = 10,789.12/x
  3. Step 3: Cross multiply
    18,748.16x = 25,871.36 × 10,789.12
  4. Step 4: Simplify right side
    18,748.16x = 279,129,207.60
  5. Step 5: Solve for x
    x = 279,129,207.60/18,748.16
  6. Step 6: Final answer
    x = 14,888.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.